Justin Rutherford Posted March 25, 2019 Posted March 25, 2019 I just purchased a 1983 astroglass 175v with a 80hp mercury on it. I'm looking to get it ready for fishing this season and am having trouble deciding how big of a trolling motor I need. I've found 3 different weights for the boat on different forums and was wondering if anyone has any info on what kind of thrust I'd need for this boat Quote
Allaroundfishing Posted March 25, 2019 Posted March 25, 2019 A boat that size I wouldnt go with any less than a 70 lb thrust and a 24v system would be best as it wont drain as fast and should provide plenty of power. You definitely dont need an extremely powerful motor like a 112 or something similar but a 70 should work. Quote
Super User WRB Posted March 25, 2019 Super User Posted March 25, 2019 I can't recall what the battery compartment is like for '83 Astroglass? Most bass boats during the early 80's were still using 12V TM's, a few had switchable 12-24V requiring 2 each 12V deep cycle batteries and that is key, 2 TM batteries. 12V-45 to 55 lb thrust or 24V-70 lb thrust, the 24V is preffered for longer battery life at mid thrust range use. Tom Quote
Justin Rutherford Posted March 25, 2019 Author Posted March 25, 2019 I can easily fit 2 12v deep cycles on one side and a 3rd for the cranking battery in the compartment. On board charger is going to be complicated but the batteries fit easily. I found a 70lb minn kota powerdrive today that I think were going to go with. Thanks for the info! Quote
Brew City Bass Posted March 26, 2019 Posted March 26, 2019 I've got a 16ft fiberglass bass boat (older) and I had a 55lb on 12v on the front and it was severely under powered. I upgraded last spring to a 24v 65lb maxxum and I never go past the 5 setting, even in 20mph winds. Batteries have lasted me 2 days of straight fishing without needing a charge. So I'd say 65lb 24v would be the minimum for you. Quote
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